Sure thing, let's get straight to it. We start with 887 and we're going to multiply it by 77, which means adding 887 to itself 77 times.
Step 1: 0 + 887 = 887
Step 2: 887 + 887 = 1774
Step 3: 1774 + 887 = 2661
Step 4: 2661 + 887 = 3548
Step 5: 3548 + 887 = 4435
Step 6: 4435 + 887 = 5322
Step 7: 5322 + 887 = 6209
Step 8: 6209 + 887 = 7096
Step 9: 7096 + 887 = 7983
Step 10: 7983 + 887 = 8870
Step 11: 8870 + 887 = 9757
Step 12: 9757 + 887 = 10644
Step 13: 10644 + 887 = 11531
Step 14: 11531 + 887 = 12418
Step 15: 12418 + 887 = 13305
Step 16: 13305 + 887 = 14192
Step 17: 14192 + 887 = 15079
Step 18: 15079 + 887 = 15966
Step 19: 15966 + 887 = 16853
Step 20: 16853 + 887 = 17740
Step 21: 17740 + 887 = 18627
Step 22: 18627 + 887 = 19514
Step 23: 19514 + 887 = 20401
Step 24: 20401 + 887 = 21288
Step 25: 21288 + 887 = 22175
Step 26: 22175 + 887 = 23062
Step 27: 23062 + 887 = 23949
Step 28: 23949 + 887 = 24836
Step 29: 24836 + 887 = 25723
Step 30: 25723 + 887 = 26610
Step 31: 26610 + 887 = 27497
Step 32: 27497 + 887 = 28384
Step 33: 28384 + 887 = 29271
Step 34: 29271 + 887 = 30158
Step 35: 30158 + 887 = 31045
Step 36: 31045 + 887 = 31932
Step 37: 31932 + 887 = 32819
Step 38: 32819 + 887 = 33706
Step 39: 33706 + 887 = 34593
Step 40: 34593 + 887 = 35480
Step 41: 35480 + 887 = 36367
Step 42: 36367 + 887 = 37254
Step 43: 37254 + 887 = 38141
Step 44: 38141 + 887 = 39028
Step 45: 39028 + 887 = 39915
Step 46: 39915 + 887 = 40802
Step 47: 40802 + 887 = 41689
Step 48: 41689 + 887 = 42576
Step 49: 42576 + 887 = 43463
Step 50: 43463 + 887 = 44350
Step 51: 44350 + 887 = 45237
Step 52: 45237 + 887 = 46124
Step 53: 46124 + 887 = 47011
Step 54: 47011 + 887 = 47898
Step 55: 47898 + 887 = 48785
Step 56: 48785 + 887 = 49672
Step 57: 49672 + 887 = 50559
Step 58: 50559 + 887 = 51446
Step 59: 51446 + 887 = 52333
Step 60: 52333 + 887 = 53220
Step 61: 53220 + 887 = 54107
Step 62: 54107 + 887 = 54994
Step 63: 54994 + 887 = 55881
Step 64: 55881 + 887 = 56768
Step 65: 56768 + 887 = 57655
Step 66: 57655 + 887 = 58542
Step 67: 58542 + 887 = 59429
Step 68: 59429 + 887 = 60316
Step 69: 60316 + 887 = 61203
Step 70: 61203 + 887 = 62090
Step 71: 62090 + 887 = 62977
Step 72: 62977 + 887 = 63864
Step 73: 63864 + 887 = 64751
Step 74: 64751 + 887 = 65638
Step 75: 65638 + 887 = 66525
Step 76: 66525 + 887 = 67412
Step 77: 67412 + 887 = 68299

So, 887*77 = 68299